Twice is generally funny guy all though he had life were he kept falling , his quirk Double can duplicate anything and make duplicates out of the first duplicate, but this mad him go a little nuts after watching a bunch of hims kill other of him, You can be whateved a villain,Hero,Vigilante, or a hero undercover as a villain whatever

Himiko Toga is a young girl who's world got changed because of blood, her quirk blood allows her to change her apperance and also can have that persons quirk if she cares qbout them, She is part of the league of villains, You can be whatever I recommend Izuku Midoriya or Deku since thats her crush

Dabi is a something out of the ordinary somehow still breathing with his current state, his quirk blue flame developed when he hit puberty his flames turned blue, Your Shoto Todoroki your quirk half cold half hot, this is during the fight were it was Jaku hospital